Adjustable folding chair



p 1947- B. P. INFANTINO 2,428,314 I ADJUSTABLE FOLDING CHAIR- Filed Oct. 20, 1944 Patented Sept. 30, 1947 ADJUSTABLE FOLDING CHAIR Benjamin P. Infantino, Corona, Long Island, N. Y.

Application October 20, 1944, Serial No. 559,569

This invention relates to folding chairs, and has for one of its objects the production of a simple and efilcient chair which is so constructed as to support the seat and back rest in a plurality of adjusted positions.

A further object of this invention is the production of a simple and eificient assembly of parts of the chair which may be so adjusted as to support the seat at selected heights without changing the angle or incline-position of the back rest, unless it is desired to change the position of the back rest.

Other objects and advantages of this invention will appear throughout the following specification and claims.

In the drawing- Figure 1 is a side elevational view of the chair in one selected position;

Figure 2 is a top plan view, certain parts being broken away;

Figure 3 is a vertical sectional view taken on line 33 of Figure 1;

Figure 4 is a detail vertical sectional View taken on line l--l of Figure 1;

Figure 5 is a detail vertical sectional view taken on line i35 of Figure 1;

Figure 6 is a diagrammatic side view of the chair illustrating a second adjusted position.

By referring to the drawing, it will be seen that Ill designates the seat of the chair, which seat is pivotally supported at its front end, as at II, by the upper ends of a pair of rearwardly extending inclined legs HE. A pair of forwardly extending inclined legs it are pivotally connected, as at I4, to the legs l2, see Figure l. The legs I2 and I3 extend in X-shape relation when the chair is in a set-up position, as is illustrated in Figure 1. The legs I2 are provided with a plurality of spaced notches I5 upon their upper faces, and the legs [3 are provided with a plurality of spaced notches upon their upper faces, for the purpose herein described.

An arm brace I I is pivotally mounted, as at I I, to the leg l2 and the seat I0, upon each side of the chair. The upper end of each arm brace I1 pivotally supports the forward end of an arm rest I8, as at Il Each arm brace I1 is provided with a forked lower end I9. The forked lower ends I9 of these arm braces II straddle the forward ends of the legs I3. A transverse pin 20 spans each forked end I9 and fits into one of the selected notches E6 of the leg l3 to hold the brace I! in an adjusted position.

Parallel side rails 2| of the back rest 22 are pivotally connected, as at 23, to the rear ends 3 Claims. (01.155-117) of the arm rests it. A transversely extending seat-supporting rod 24 is secured at its opposite ends to the side rails 2I of the back rest 22 and the lower edges of the side rails Iii of the seat Ill slidably engage this seat-supporting rod 24, see Figure 4. A transversely extending dowel rod 25 connects the lower ends of the rails 2| below the rod 2d. The ends 26 of the rod 25 project laterally of the ends of the rails 2i. The lower end of each rail 2! is off-set inwardly so as to permit the ends 26 of the rod 25 to fit into selected notches I5 of the legs l2. The construction of the lower end of one of the rails 2| is illustrated in detail in Figure 4. The legs, seat and back rest, are suitably braced transversely in the conventional manner, as shown.

A foot or leg rest 21 is slidably mounted underneath the seat Ill and is adapted to slide between the side rails Ill Supporting legs 28' support the forward end of the foot or leg rest, as shown in Figure 1. Transverse panels 29 secured to the bottom edges of the side rails iii of the seat ll] provide supports for the inner end of the foot or leg rest 21.

The operation of the chair is as follows:

When the arm braces II are placed in a position to engage the highest notches I6 in the front legs I3, and the. ends 26 of the rod 25 engage the top notches I5 of the rear legs I2, the chair is in its highest seating position, as shown in the diagrammatic view Figure 6. Preferably there are five notches in each of the front and rear legs l2 and 53. This arrangement will permit of a number of adjustments both in lowering and raising the seat without necessarily changing the angle of the back rest.

By placing the arm braces IT at the lowest notches in the front legs I3, and the ends 26 of the rod 25 at the top notches in the rear legs I2, the back rest will slant to an angle of about 45 degrees. Various selected adjustments may be made by the operator to change the angle of the back and seat by adjusting the position of the back rest to cause the ends 26 of the rod 25 to fit into selected notches I5 of the legs I2 when desired. It should be noted that the seat It] will slide on the rod 24 to properly support the seat as the back rest is adjusted. The foot or leg rest may be slid under the seat, if desired, to render the rest invisible or unnoticeable, or it may be extended to place the chair in a comfortable sleeping position.

The chair may be folded as follows:

The back rest is pulled forwardlyin the direction of the arrow ;A to a horizontal position,

swinging on pivots 23. The front braces I! are lifted out of engagement with the legs [3, and the lower ends of the braces I! are pulled forwardly in the direction of the arrow B to an approximately horizontal position, swinging on pivots I I. This movement will move the arm rests l8 downwardly parallel to the seat 10. The crossed legs l2 and I3 will then automatically close since they are pivoted, as at 14. The foot and leg rest 21 is slid under the seat and the chair is then in a completely folded position, ready for storage or transportation.

When the chair is in a set-up position, the

same will be firmly braced since the front legs 13 and seat iii are connected by the brace I1, and the rear legs are adjustably engaged bythe back rest, the seat resting near its rear end upon the rod 24 forming a part of the back rest 22 and the back rest being connected to braces I! by arm rests 18.

It should be understood that certain detail changes in the construction may be employed without departing from the spirit of the invention, so long as such changes fall within the scope of the appended claims.

Having described the invention, what I claim as new is: i

1. A chair of the class described comprising a seat, a pair of front legs and a pair of rear legs, the rear legs being pivoted to the seat, the

front and rear legs being pivotally connected together intermediate their ends in substantially X-shape formation, a front brace pivotally connected to said seat upon each side thereof, said front legs having spaced notches upon the top face thereof, each brace having a fork-shaped lower end straddling the upper edges of said front legs and having means fitting in said notches for adjusting said braces upon said front legs, an arm rest upon each side of said chair, each arm rest being pivotally connected to a companion brace, a back rest pivoted between the rear ends of said arm rests, said back rest having depending side rails, a transverse seat-supporting rod connecting said depending side rails, and contacting said seat and providing a, rest for said seat to slidably support said seat, said rear legs having spaced notches formed thereon, and laterally extending anchoring pins projecting from said depending ends of said back rest for fitting into the last mentioned notches for holding said back rest in an adjusted position.

' 2. A chair of the class described comprising a seat, a pair of front legs, a pair of rear legs pivoted to the seat, the front legs being pivotally secured to the rear legs intermediate their ends, braces pivotally secured near the front portion of the seat, arm rests pivotally connected to the braces, a back rest pivoted to the arm rests near the rear ends thereof, means for selectively connecting the lower ends of said braces with the front legs in adjusted positions, means connecting the back rest with said rear legs in selected adjusted positions, seat-supporting means carried by the back rest for supporting the seat in slidable relation with respect to said supporting means, and a slidable foot and leg rest carried underneath said seat and movable longitudinally thereof in a manner whereby said foot and leg rest may be selectively extended and moved to a position under said seat.

3. A device of the class' 'described comprising a seat, front and rear legs located upon each side of said seat, the front and rear legs being pivotally connected to each other, said rear legs being pivoted to the front of said seat, a brace upon each side of said seat, means adjustably and detachably connecting the braces to said front'legs, a back rest, means adjustably and detachably connecting said back rest with' said rear legs, a seat-supporting means carried by said back rest and slidably supporting said seat, and means pivotally connecting said braces and back rest 'iin spaced relation to each other, the front and rear legs being movable toward and away from each other at their lower ends to raise and lower said seat and said braces and back rest being movable relative to said seat to hold said back rest in a selected adjusted position relative to said seat.

BENJAMIN P. JNFANTINO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

